BCM Power Supply and Ground Circuit Check

WARNING: This page is about a different car, the 2004 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.

CHECKFUS E
- Check the following BCM fuse and fusible link.
Fig 1: BCM Power Supply & Ground Circuit Inspection Chart
Courtesy of NISSAN MOTOR CO., U.S.A.

NOTE: Refer to , "COMPONENT PARTS AND HARNESS CONNECTOR LOCATION ".

OK or NG
1. OK: GO TO 2
2. NG: If fuse is blown, be sure to eliminate cause of problem before installing new fuse, refer to SYSTEM WIRING DIAGRAMS .
CHECK POW ER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM.
3. Check voltage between BCM connector M19 terminals 42, 55 and ground.
Fig 2: Connector Terminals Voltage Table
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 3: Checking Voltage Between BCM Connector M19 Terminals 42, 55 & Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK: GO TO 3
2. NG: Repair or replace harness.
CHECK GROUNDCIRCUIT
Check continuity between BCM connector M19 terminals 49, 52 and ground.

Fig 4: Connector Terminals Continuity Table
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 5: Checking Continuity Between BCM Connector M19 Terminals 49, 52 & Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK: Power supply and ground circuit is OK.
2. NG: Repair or replace harness.